No, a ghost may fall in love with a human, but not an angel, angels are not lovable, they are not the beautiful girls in the paintings, they are incorporeal creatures with no shape, face and sex.
really don't think either are real but only fictional entities .
Some naturally deluded individuals believe the Holy ghost loves all the angels if you're really into that kind of superstitious thinking ,fine . It takes all kinds to make a world.
when you can talk to anyone of them and be able to have a full conversation then ask them....not one of us people who are not ghost or angels....ok? please vote this as the best answer everyone else will just give you their opinion...not fact